本文记述了在浙江上虞发现的伪虎鲸Pseudorca crassidens头骨亚化石。这个发现在我国尚属首次。1972年,上虞县文化馆朱瑞钱送来我馆一件完整的鲸头骨亚化石,它是葛信尧在浙江上虞章镇黄泥堪附近的曹娥江里捞砂时发现的。经我们鉴定是伪虎鲸。据标本石化程度、产地的地层,伪虎鲸标本的时代不晚于中全新世。这是接1843年在英国林肯郡沼泽首次发现后的又一个伪虎鲸头骨亚化石,且保存完好。 This article describes the fossil fossil of the pseudo-killer whale Pseudorca crassidens found in Shangyu, Zhejiang Province. This discovery is the first time in our country. In 1972, Shangyu County Cultural Center Zhu Ruiqian sent us a complete whale fossil, which was discovered when Ge Xin Yao was fishing in the Cao’e River near Huangnhang, Zhangyu Town, Zhejiang Province. After our identification is a false killer whale. According to the degree of petrification of specimens, strata of origin and the age of pseudo-killer whale specimens are no later than the mid-Holocene. It was another fossil fossilized skull fossil that was preserved in 1843 after it was first discovered in the Lincolnshire Swamp of England.